Linked Questions

1
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3answers
673 views

Gravitational doubt [duplicate]

If we can shield a charge from electrical forces by putting it inside a hollow conductor. Can we shield a body from gravitational influence of nearby matter by putting it inside a hollow sphere or by ...
1
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2answers
4k views

Electric vs. Gravitational shielding [duplicate]

There are great similarities between electric and gravitational fields and, furthermore, a room can be electrically shielded so that there are no electric fields simply by surrounding it with a ...
0
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2answers
4k views

Can we make a force which can oppose earth gravity? [duplicate]

If we are standing on earth, then some force (gravity of earth) is pulling us down. Can't we make a force which can oppose gravity? Can't we make an object of zero mass?
3
votes
1answer
382 views

Can a gravitational field be diluted or shielded? [duplicate]

An electromagnetic field can be diluted in a volume by using a dielectric. The polarization of the dielectric material results in the field decreasing in magnitude. Can a gravitational field be ...
-2
votes
1answer
235 views

Can we disconnect an object from the pull of gravity using some material? [duplicate]

I have once come across a material/ substance/ compound, or something, that cuts off objects from Earth's gravitational pull. In other words, it would keep the object suspended in the air and will ...
2
votes
0answers
173 views

Can gravity be blocked or augmented? [duplicate]

If gravitons (or some other quantum particle) are indeed responsible for the effect of gravity, can gravity be blocked, defected or trapped somehow? Is there any evidence that a gravitational field ...
13
votes
4answers
2k views

Gravitational shielding and equivalence principle

I read on wiki that gravitational shielding is considered to be a violation of the equivalence principle. Is that so, How? A conceptual description without lot of mathematics will be helpful. I am ...
11
votes
4answers
4k views

Can gravity be shielded, like electromagnetism?

If I remember well, they said that it can't, but I do not know why. Yes, I meant if gravity can be shielded using something like a Faraday cage (or something else?). Thank you.
2
votes
2answers
427 views

Gravity transmission

As I understand it, gravity waves are transmitted at the speed of light and they attract what they get to. But what concerns me is how do they affect things. This might seem stupid, but is it ...
5
votes
1answer
330 views

Can an analog to the Meissner Effect be proposed for matter and gravitational fields?

In the study of electromagnetic fields and quantum electrodynamics we observe and theorize on the behavior of superconductivity and the Meissner effect. Has an analog of these behaviors been proposed ...
2
votes
2answers
184 views

Would a Cavorite-like material violate any conservation laws?

This post addresses a similar question, but rather than using gravitons as a means of propulsion, my question addresses the blocking of gravitational fields using a hypothetical passive material such ...
3
votes
3answers
94 views

Is gravity weaker when there is a mass obstructing?

If gravity were an exchange of particles it seems reasonable to me to assume that a mass between two other masses would lessen the attraction between the two outer masses, as the exchange particles ...
3
votes
1answer
102 views

Can we shield against gravity by surrounding ourselves with a sphere of black holes?

The common idea is that gravity can't be shielded against. I highly doubt that. Let us create a sphere: $$s: r^2 = x^2+y^2+z^2$$ which is centred on a point $M$. Now we start putting tiny black ...
0
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1answer
71 views

A question gravitation and magnetism? [closed]

Suppose I have a magnet and I put a piece of iron next to it, then the magnet will attract it. Now if I put a piece of wood in front of the magnet and the piece of iron, the iron will not get ...